AUTO DETECTION OF GUARD LOCKING DEVICE

摘要

A safety switching device for driving a plurality of different kinds of guard locking devices is provided. The safety switching device comprises a first terminal and a second terminal for connecting a guard locking device, and a safety processor adapted for controlling drive signals at the first and the second terminal to drive the guard locking device. The safety processor is adapted for determining a kind of a guard locking device connected to the first and/or the second terminal out of a plurality of different kinds of guard locking devices by detecting external electrical connections between the first terminal, the second terminal, and a reference potential. The safety processor is further adapted for controlling the drive signals depending on the determined kind of the guard locking device.

主权项

1. A safety switching device for driving a plurality of different kinds of guard locking devices, said safety switching device comprising:
a first terminal and a second terminal for connecting a guard locking device; and a safety processor adapted to
control a plurality of drive signals, each drive signal output at one of the first and the second terminal to drive the guard locking device,detect at least one external electrical connection between at least one of the first terminal and the second terminal and a reference potential,determine which of the plurality of different kinds of guard locking devices is connected to the at least one of the first terminal and the second terminal, andcontrol the drive signals depending on the determined kind of guard locking device, wherein said plurality of different kinds of guard locking devices is selected from a first kind, of guard locking device having a solenoid, a second kind of guard locking device having a single channel logic input, and a third kind of guard locking devices having dual channel safety inputs.